How to do login page by pressing enter button from keyboard [Resolved]

You donot need to click mouse on login button rather enter button from keyboard wright if it is so then  



using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Data.OleDb;

namespace

{

    public partial class Form1 : Form

    {

        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];

        OleDbCommand com;

        string str;

        object obj ;



        public Form1()

        {

            InitializeComponent();

        }



        private void btn_login_Click(object sender, EventArgs e)

        {



            OleDbConnection con = new OleDbConnection(ConnectionString);

            con.Open();

            str = "select count(*) from login where UserName=@UserName and Password =@Password";

            com = new OleDbCommand(str, con);

            com.CommandType = CommandType.Text;

            com.Parameters.AddWithValue("@UserName", TextBox_user_name.Text);

            com.Parameters.AddWithValue("@Password", TextBox_password.Text);

            obj = com.ExecuteScalar();

            if ((int)(obj) != 0)

            {

                lb1.Text = "WELLCOME :: " + TextBox_user_name.Text;

            }

            else

            {

                lb1.Text = "invalid user name and password";

            }

            con.Close();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            this.AcceptButton = btn_login;

        

        }

  

    }

}

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